set last seen action

services/gunDB/Mediator/index.js

@@ -344,6 +344,34 @@ class Mediator {
     this.socket.on(Event.ON_SEED_BACKUP, this.onSeedBackup)
 
     this.socket.on(IS_GUN_AUTH, this.isGunAuth)
+
+    this.socket.on('SET_LAST_SEEN_APP', async body => {
+      try {
+        await throwOnInvalidToken(body.token)
+        await new Promise((res, rej) => {
+          getUser()
+            .get('lastSeenApp')
+            .put(Date.now(), ack => {
+              if (ack.err) {
+                rej(new Error(ack.err))
+              } else {
+                res()
+              }
+            })
+        })
+        this.socket.emit('SET_LAST_SEEN_APP', {
+          ok: true,
+          msg: null,
+          origBody: body
+        })
+      } catch (e) {
+        this.socket.emit('SET_LAST_SEEN_APP', {
+          ok: false,
+          msg: e.message,
+          origBody: body
+        })
+      }
+    })
   }
 
   /** @param {SimpleSocket} socket */

utils/encryptionStore.js

@@ -6,7 +6,12 @@ const { Buffer } = require('buffer')
 const APIKeyPair = new Map()
 const authorizedDevices = new Map()
 
-const nonEncryptedEvents = ['ping', 'disconnect', 'IS_GUN_AUTH']
+const nonEncryptedEvents = [
+  'ping',
+  'disconnect',
+  'IS_GUN_AUTH',
+  'SET_LAST_SEEN_APP'
+]
 
 const Encryption = {
   isNonEncrypted: event => nonEncryptedEvents.includes(event),